Maxim Integrated MAX2771 - Page 32

Conguration 1 (0x0) (continued)
BITFIELD BITS DESCRIPTION DECODE
LNAMODE 16:15 LNA mode selection
0x0: High band LNA is active
0x1: Low band LNA is active
0x2: Both LNAs disabled
0x3: RESERVED
MIXERMODE 14:13 Mixer mode selection
0x0: High band mixer enabled
0x1: Low band mixer enabled
0x2: Both mixers disabled
0x3: RESERVED
FCEN 12:6
IF lter center frequency setting. Refer to
Applications section for details on usage.
FBW 5:3 IF lter bandwidth selection.
0x0: 2.5 MHz
0x1: 8.7 MHz
0x2: 4.2 MHz
0x3: 23.4 MHz (lowpass mode only)
0x4: 36.0 MHz (lowpass mode only)
0x5: RESERVED
0x6: RESERVED
0x7: 16.4 MHz (lowpass mode only)
F3OR5 2 Filter order selection
0x0: 5th order lter
0x1: 3rd order lter
FCENX 1 Polyphase lter selection
0x0: Lowpass lter
0x1: Complex bandpass lter
FGAIN 0 IF lter gain setting
0x0: Filter gain reduced 6dB
0x1: Normal lter gain
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MAX2771 Multiband Universal GNSS Receiver